Yeah these type of articles always have hypester tone with less substance unfortunately. RiotJS is great but ember.js API/tools are even greater, highly suggest learning ember.js, if you value good APIs, testing & good community ;)
The walkthrough on how to build a JS framework from scratch is "hypester" because in the short section that mentions existing frameworks, your pet frameworks weren't included?
Oh come on! The article mainly mentions the specific frameworks it does to qualify and contextualize the set of features it discusses, which it goes on to implement. The article is excellent, and this kind of reflexive dismissal is so tiresome.